Why don't you ask him, since it's his opinion that matters, not our. If you're comfortable with him and trust him, you should be able to tell him you're nervous and want his opinion on something. Or let him do it then ask him what he thinks.
If you feel uncomfortable with your pubic hair, then shave! But if you want the hair there, don't change it just for him. I'd definitely keep it trimmed and groomed.. b/c having a forest down there is no good and most guys don't like it COMPLETELY natural. A lot of guys do like a little bit of hair so it doensn't look like a little kid's privates. What you can do also is you can shave the sides and leave a little trip in the middle and keep it trimmed short... IF you feel like there is too much or something.
I agree that most guys wouldn't care.. I know one friend of mine who preferred shaved, but enjoyed touching one girl who was not groomed at all down there simply because she showed how much she enjoyed it, rather than a shaved girl who showed nothing at all. Just be comfortable and have fun!